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Finding the Third Proportional to 528,028 and 1,121,503

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Solution

The third proportional to 528,028 and 1,121,503 is: 2,382,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,028 : 1,121,503 = 1,121,503 : x
  2. Step 2: Convert to fraction form
    528,028/1,121,503 = 1,121,503/x
  3. Step 3: Cross multiply
    528,028x = 1,121,503 × 1,121,503
  4. Step 4: Simplify right side
    528,028x = 1,257,768,979,009
  5. Step 5: Solve for x
    x = 1,257,768,979,009/528,028
  6. Step 6: Final answer
    x = 2,382,011.90

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.